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Lobar pneumonia
On the chest x-ray there is an ill-defined area of increased density in the right
Lobar pneumonia ... On the chest x-ray ... pneumonia caused ... #Clinical #Radiology ... #Lobar #Pneumonia
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic chest ... and dyspnea • Lobar ... factor • May cause ... fever, rales, interstitial ... infiltrates or lobar
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
pneumonias (IIPs ... indicates unknown cause ... listed in the table ... #Diagnosis #Radiology ... #ILD #Findings
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... Consolidation - Lobar ... consolidation - Multifocal ill-defined ... Nodule - Multiple Masses ... Diagnosis #Clinical #Radiology
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... - Lobar or focal ... For instance a lobar ... pneumonia caused ... #Diagnosis #Radiology
Based on the images alone, it is usually not possible to determine the cause of the
between these chest ... Lobar pneumonia ... this is nodular interstitial ... lung disease, that ... Clinical #Diagnosis #Radiology
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Artery Disease • Stable ... Chest Wall Abnormalities ... Pulmonary Alveoli • Pneumonia ... Neoplasm Pulmonary Interstitium ... • ILD • CHF
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
Patients • Diffuse Interstitial ... complex • Nodular/Masses ... Actinomyces spp., NHL; Lung ... differential #diagnosis #chestCT ... #radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
lung disease comes ... low attenuation (table ... On a Chest X-Ray ... lung disease and ... #Diagnosis #Radiology
Here a typical lobar consolidation.
First study the images, then continue reading.
The findings are:
increased density with ill-defined
borders in the left lung ... , TB and lung cancer ... #Clinical #Radiology ... AirBronchogram #LLL ... #Lobar #Pneumonia